/*
 * Copyright (c) 2004-2022, University of Oslo
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 * 1. Redistributions of source code must retain the above copyright notice, this
 * list of conditions and the following disclaimer.
 *
 * 2. Redistributions in binary form must reproduce the above copyright notice,
 * this list of conditions and the following disclaimer in the documentation
 * and/or other materials provided with the distribution.
 *
 * 3. Neither the name of the copyright holder nor the names of its contributors 
 * may be used to endorse or promote products derived from this software without
 * specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR
 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
 * ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
package org.hisp.dhis.mapgeneration;

import java.util.ArrayList;
import java.util.List;

public class InternalMap {
  private List<InternalMapLayer> layers = new ArrayList<>();

  // -------------------------------------------------------------------------
  // Constructors
  // -------------------------------------------------------------------------

  public InternalMap() {}

  // -------------------------------------------------------------------------
  // Logic
  // -------------------------------------------------------------------------

  /**
   * Returns the first data layer of the list of layers for this map. Returns null of none of the
   * layers are data layers.
   */
  public InternalMapLayer getFirstDataLayer() {
    for (InternalMapLayer layer : layers) {
      if (layer != null && layer.isDataLayer()) {
        return layer;
      }
    }

    return null;
  }

  // -------------------------------------------------------------------------
  // Getters and setters
  // -------------------------------------------------------------------------

  public List<InternalMapLayer> getLayers() {
    return layers;
  }

  public void setLayers(List<InternalMapLayer> layers) {
    this.layers = layers;
  }
}
